Name requested: Umbilicaria cylindrica

	Lichenologist 3 (1): 150, 150, 150, 150, 150, 150. 12 (1): 101, 101, 101, 101, 101, 101. 16 (3): 217.
	Lichens of North America null: 698, 699, 701, 708, 709.
	Mycotaxon 18 (1): 178. 35 (2): 385, 389. 40: 257. 46: 213, 214. 48: 259, 266. 53: 106. 58: 223. 74 (2): 439, 443.

Homotypic synonym: Gyrophora cylindrica

	Lichenologist 3 (1): 150. 12 (1): 101.
	Mycologia 11 (6): 301.
	Mycotaxon 46: 213.